Plow-mounting mechanism.



I. A'. ERICKSON. PLOW MOUNTING MECHANISM.

APPLICATION FILED NOV-9.1914.

INLF

J. A. ERICKSON. PLOW MOUNTING NIECHANISM. APPLICATION HLED Nov. 9, 1914.

- y 1,1 89,927. Patented July 4, 1916.

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PLOW-MOUNTING- MECHANISM.

Specification of Letters Patent.

Patented July 4, 1916.

Application led November 9, 1914. Serial No. 871,072.

To all 'whom it may concern Be it known that l, JOHN A. ERICKSON, a citizen of the United States, residing at Fairview, in the county of Sanpete and State of Utah, have invented certain new and useful Improvements in Plow-Mounting Mechanism; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates broadly to improvements in agricultural implements and more particularly to plow mounting mechanism for use in connection with motor driven plows.

The object of the invention is to improve upon the construction of devices of this general character to such an extent as to provide a machine which will be simple, strong and eiiicient in operation and which will readily perforln the functions for which it is designed.

lVth the above and minor objects in view, the invention resides in certain novel features of construction and combination herein described and claimed and shown in the drawings wherein- Figure 1 is a central vertical longitudinal section of the machine with the plows raised; Fig. 2 is a detail section similar-to Fig. 1 showing one of the plows lowered; Fig. 3 is a detail horizontal sectionshowing a top plan view of one of the plow beams and its operating link; Fig. 4 is substantially a side view of the parts seen in Fig. 3; Fig. 5 is a disassembled perspective view of the elements shown in Figs. 3 and 4.

In the accompanying drawings, a main frame 1 is shown which includes a pair of longitudinal side bars 2 connected at intervals by transverse bars 3 and supporting a platform 4 upon their rear ends, the front ends 5 of said bars 2 being spaced below a rectangular frame 6 which is secured to said bars by uprightside brackets 7 and by a front bracket 8. (See more particularly Fig. 1.)

Non-rotatably held by the frame 6, is a bea-ring ring 9 beneath which a fifth wheel 10 is mounted to rotate, said wheel carrying bearings 11 in which the short axle 12 of steering wheel 13 is mounted, and having gear teeth 14 on its under side, said teeth meshing with a gear wheel 15 which is keyed rigidly upon the forward end of a steering rod 16 the latter extending rearwardly to a point above the platform 4 and being revo-lubly mounted in a bracket 17 which rises from one of the cross bars 3. The bracket 17 is provided with a lateral extension 18 to which a curved locking arm 19 is pivoted, said arm having a nose designed to engage a squared portion 2O of the rod 16 when it is desired to lock said rod against rotation. A stop pin 21 is provided on the extension 18 for limiting the outward movement of the arm 19. As shown in the drawings, the

rear end of the rod 16 is provided with a.

steering wheel 22 which is located in advance of a seat 23 supported upon the platform.

Secured above certain of the transverse bars 3, is a plurality of longitudinal stringers Q4. to the intermediate portions of which bearings 25 and 25 are secured, the bearings 25 revolubly supporting the opposite ends of a transverse crank shaft 9,6 having a comparatively long crank 27 while the bearings 25 revolubly support the Opposite ends of a rear crank shaft 26 having comparatively short crank armsA 27. Spaced forwardly from the crank shafts 26and 26, is a transverse operating shaft 28 from which a plurality of operating arms or cranks 29 depend while a single upright arm 30 rises from said shafts `and is connected by a link 31 with a main operating lever 32 which is located adjacent the platform and provided with a pawl and rack mechanism 33 whereby it may be locked in adjusted position.

For the details now to be described see more particularly Figs. 3, 4 and 5. A plurality of plow beams 34 are providedv benea-th the frame, said beams having their rear ends curved downwardly and secured to suitably constructed plows 35. It will be noted that the rear ends o-f the beams 34 are notched as seen at 36 to receive the rear cranks 27', said notches thereby constituting half bearings, the latter being completed by the provision Of hook shaped plates 38 whose bills embrace the cranks 27 and coact with the notches 36 for forming complete bearings, said plates being secured by bolts 39 or other fasteners to the beams 34. The lower edges of the plow beams 34 are notched as seen at 40, near their front ends, said notches receiving the cranks 27 and constituting half bearings, the other halves of said bearings being formed by hook shaped plates 41 whose bills embrace said cranks on opposite sides of the beams. By reference more particularly to Fig. 5, it will be seen that the bills of the plates il face in opposite directions and that said bills are prevented from moving downwardly in respect to the beams, by laterally projecting stops l2 formed on the front ends of the beams.

Secured between the free ends of the plates ll and projecting forwardly therefrom, are operating links 43 lwhose forward ends are preferably forked and pivoted at les to the depending cranks or arms 29. By this construction, it will be seen that rocking of said cranks 29 by the lever 32, will rock the cranks Q7 and QT in directions to raise or lower the plow beams, as the case may be. it will likewise be seen that, on account of the fact that the front cranks 27 are of greater length than the rear cranks 2l the front ends of the plow beams will be tilted downwardly as seen in Fig. Q, thereby directing the plow points downwardly to cause them to be effectively retained in the ground. T his last described operation constitntes a marked improvement in devices of this general character in which the plows are prone to ride upwardly,

By reference to Figs. 2 and 3, it will be seen that the roar end of the frame l car` ries depending bearings 53 in which the outer ends` of crank shafts are revolubly mounted, said crank shafts having depending cranks upon which oblique marking and earth working disks 5l are revolnbly mounted and having' other cranks to which the rear ends of links 5G are connected by oppositcly facing hooks 57 similar to those designated by the numeral il, the front ends of said links being forked and pivoted to certain of the arms '29, whereby the disks will be raised and lowered simultaneously with the raisingand lowering of the plows.

Although any appropriate means could be employed for supporting and driving the frame l, a transverse drive shaft 100 is preferably provided, said shaft being revolubly mounted in bearings which rise from the main frame and having drive wheels 101 on its outer ends, said wheels being provided with internal gear teeth 102 with which pinions on a transverse driven shaft 10st mesh, said pinions being normally loose upon the ends of said shaft but being capable of rotating therewith when clutches are thrown in by proper operation of levers 10G.

From the foregoing description, taken in connection with the accompanying drawings, it will be seen that comparatively simple mechanism has been provided for carrying` out the objects of the invention, yet that an eticient device has been provided which possesses a number of advan tageous features.

I claim:

l. The combination with a wheel supported frame of a trio of longitudinally spaced transverse shafts thereon, a comparatively long crank depending from the central shaft, shorter cranks depending from the front and rear shafts, a plow beam pivotally connected to the central and rear cranks, a link pivotally connected to the central and front cranks, and means whereby the latter may be rocked.

2. rl`he combination with a wheel supported frame, of a front and rear crank depending therefrom, a plow beam connected to the rear crank and having a. notch in one edge of its front end, said notch receiving one side of the front crank, an operating link in advance of said front crank, a hook shaped plate carried by said link and embracing thc other side of said front crank, a stop on the beam for preventing the plate from moving vertically in respect thereto, and means connecting the rear end of the beam to the rear crank.w

3. rlhe combination with a wheel supported frame, a shaft having a crank, and an implement to be raised and loweredby rotation of said shaft, of an operating link having one end located adjacent the crank on. said shaft, and a pair of plates secured to said link and having oppositely facing hooks embracing the crank.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit nesses.

JOHN A. ERICKSQN.

lVitnesses z JAMES; Riemer, Armin L. CanLs'roN.

Copies of this patent` may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington. D. C." 

